[Mate 8 General] drexappeal:
I'm almost at the 2 month mark, using the Mate 8 as my daily driver and still astonished at how great the battery life is. This is my daily routine (starting at night):

- Charge the Mate 8 to 100%, prior to sleeping.

- Take the phone off charger, and place it in "Smart Battery" mode, as well as turning on the No Disturb toggle.

- Maintain Wifi, Bluetooth, GPS on the entire night, with Wifi never turning off.

- Wake up in the morning at around 6am, turn off No Disturb toggle and switch to "Performance" battery mode.

- Turn back on any apps that might have been closed, overnight, that need to be "re-activated" (e.g. Last Pass, GSam Battery, Widgetlocker are 3 apps that Smart mode seem to disable, even with Priority mode given). Check weather and clear out any notifications, while also reading any important messages/emails that came in over night

- Leave house, for daily work commute (35 min. drive time), at around 730am

- If battery life is still close to 90%, I do not plug in right away (in order to keep battery statistics consistent). Typically won't plug in, unless battery gets to 80% or lower, while on my 35 minute commute.

- While on the commute, I have Ultra Car Home and Waze running the entire time (and sometimes, Torque), as well as Wifi Hotspot, Bluetooth, GPS activated.

- Stay on performance mode the entire day, w/ all of my most used apps sync'ing constantly, this includes the "power draining apps" notification built into EMUI. The only apps I would manually have the system turn off, are the ones that I wouldn't need to have consistently pulling information (e.g. Car Home Ultra comes up, Waze, and only a few others).

- At the end of the day, I leave the office around 730-8pm. Typically, I'd be around 50-55% battery at that time.

- On the commute home, I automatically plug in when getting in the car. Assuming no additional stops, the charging will add around 5-10%, depending on how much work the phone needs to do while driving.

- Once home, I check all the messages that came in while driving, and after making sure I've replied to all the possible texts/messages/emails, I will put the phone back on No Disturb and "Smart" battery mode.

- I leave the phone off charger for the entire night and wake up to the same routine, except for immediately plugging into the charger (when in the car).

- Only difference on the 2nd day, after a full charge, is I actually go out of my way to use the phone extremely heavily, before charging it up to 100% again. At that point, I've already gone around 48 hours without fully charging the device.

After following that basic routine, my stats are still amazingly better than any other phone I've ever used. I followed this same routine, when I had the Note 3. When I first got the Note 3, it would survive 24 hours (maybe more), but saw significant drop from that after a few months. Within 1 year, I had a great routine with battery swapping on the Note 3, but nowhere near the same battery life. I'm hoping that the Mate 8, even when the battery starts to degrade, could still get me through 24 hours without having a full charge. If the Mate 8 maintains this type of performance, combined with battery life, after 2 years....I'd not only be shocked, but I'd definitely be on board the Huawei hype train (if I'm not already).

My average screen on time has now averaged out to 15 hours w/ battery life average 1 day and 15 hours (after full charge). Those averages seem to be more on point than what my ridiculous averages were before, but it's still amazing to me.